Which ordered pair is a solution to the system of linear equations y= 5x+8 and y= -4x-1 (1,3) (3,-1) (-1,3) (-3,1)

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?

:malik received a $300 gift card from his grandparents and is using it only to pay for his karate lessons, which cost $30 per month. determine what amount, in dollars, remains on the card after 8 months.